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Suppose there exists a new airline named Jetco that flies domestically across North America. Jetco recently had a study commissioned that tested the boarding time of every airline, and it came out that Jetco had the fastest average boarding times of any airline.

What factors could have biased this result, and what would you look into?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

Boarding Times Bias

A new airline came out as the fastest average boarding times compared to other airlines.  What factors could have biased this result and what would you look into?

Statistics

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

What is a key disadvantage of the F-test when compared to multiple t-tests?

What is a key disadvantage of the F-test when compared to multiple t-tests?

Hundreds of Hypotheses

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

In an A/B test, how can you check if assignment to the various buckets was truly random?

In an A/B test, which of the following is a common method to determine if the assignment to the test groups was truly random?

In an A/B test, which of the following is a common method to determine if the assignment to the test groups was truly random?

Random Bucketing

A/B Testing & Experimentation

Project44 Salaries by Position

Why project44? At project44, we believe in better. We challenge the status quo because we know a better supply chain isn’t just possible—it’s essential. Better for our customers. Better for their business. Better for the world. With our Decision Intelligence Platform, Movement, we’re redefining how global supply chains operate. By transforming fragmented logistics data into real-time, AI-powered insights, we empower companies to connect instantly, see clearly, act decisively, and automate intelligently. Our Supply Chain AI enhances visibility, drives smarter execution, and unlocks next-gen applications that keep businesses moving forward. Headquartered in Chicago, IL with a 2nd HQ in Bengaluru, India we are powered by a diverse global team that is tackling the toughest logistics challenges with innovation, urgency, and purpose. If you’re driven to solve meaningful problems, leverage AI to scale rapidly, drive impact daily, and be part of a high-performance team – we should talk. Description: project44 is looking for a Senior Software Engineer 2 to join our engineering team. You will work in a fast-paced Agile environment designing, building, and implementing best-in-class integrations to accelerate how project44 connects to the world’s logistics networks. Key accountabilities: What you'll work on <ul><li>Design, develop, and maintain enterprise-grade applications using Java, Spring, and Spring Boot frameworks.</li><li>Implement event-driven architectures leveraging Apache Kafka for real-time data streaming and messaging.</li><li>Develop, configure, and optimize Spring-Kafka integrations to ensure reliable and high-throughput message processing.</li><li>Participate in architectural discussions, performance tuning, and scalability improvements.</li><li>Collaborate with cross-functional teams to design RESTful APIs and integrate with other microservices.</li><li>Ensure best practices in code quality, testing, and deployment.</li><li>Monitor and troubleshoot production systems, ensuring high availability and performance</li></ul> Qualifications: <ul><li>6+ years professional experience building large scale and real time or near real time cloud systems. </li><li>Strong programming and debugging skills, with proficiency in Java. </li></ul>Experience in: <ul><li>Strong experience in Java, Spring, and Gradle, with hands-on expertise in Spring Boot frameworks and Spring-Kafka integration.</li><li>Proficiency in designing and implementing event-driven architectures using Apache Kafka.</li><li>Solid understanding of microservices architecture, REST APIs, and distributed systems.</li><li>Experience with CI/CD pipelines and containerization (Docker, Kubernetes is a plus).</li><li>Strong problem-solving, debugging, and analytical skills.</li></ul> Desirable and helpful (but not necessary) are experience in <ul><li>Experience with investigating large and complex codebases </li><li>Creating API's/web services: REST, OpenAPI/Swagger is a plus. </li><li>Container-orchestration: Docker & Kubernetes </li><li>Enjoy database related work: DynamoDB, MongoDB, Postgres. </li><li>Analytical approach to problem solving. </li><li>Personal drive and maintaining a high pace - while taking responsibility for things working. </li><li>Willingness to vocalize your ideas and pick yourself up if you get knocked down.</li></ul> In-office Commitment: This position requires a commitment to contribute to our collaborative culture by working in-office Three days weekly. Diversity & Inclusion At project44, we're designing the future of how the world moves and is connected through trade and global supply chains. As we work to deliver a truly world-class product and experience, we are also intentionally building teams that reflect the unique communities we serve. We’re focused on creating a company where all team members can bring their authentic selves to work every day. We’re building a company that every one of us at project44 is proud to work for, and our journey of becoming a more diverse, equitable and inclusive organization, where all have a sense of belonging, is shaped through the actions of our leadership, global teams, and individual team members. We are resolute in our belief that each team member has an equal responsibility to mold and uphold our culture. project44 is an equal opportunity employer seeking to enrich our work environment by creating opportunities for individuals of all backgrounds and experiences to thrive. If you share our values and our passion for helping the way the world moves, we’d love to review your application! For any accommodation needed during the hiring process, please email recruiting@project44.com. Even if you don’t meet 100% of the above job description you should still seriously consider applying. Studies show that you can still be considered for a role if you meet just 50% of the role’s requirements. More about project44 Since 2014, project44 has been transforming the way one of the largest, most important global industries does business. As transportation and logistics continue to evolve and customer expectations around delivery become more demanding, industry technology must rise to the occasion. In just a few short years, we have created a digital infrastructure that eliminates the inefficiencies caused by dated technology and manual processes. Our Advanced Visibility Platform is used by the world’s leading brands to track shipments, collaborate with supply chain partners, drive operational efficiencies, and create outstanding customer experiences.

Why project44? At project44 we’re on a mission - to make supply chains work. project44 optimizes the movement of products globally, delivering better resiliency, sustainability, and value for our customers. As the supply chain connective tissue, we operate the most trusted end-to-end visibility platform that tracks more than 1 billion shipments annually for the world’s leading brands. The undisputed leader in the market, project44 was named the Leader in the Gartner Magic Quadrant, #1 in FreightWaves’ FreightTech 25, and the Customer’s Choice in Gartner Peer Insights’ Voice of the Customer report. project44 is headquartered in Chicago with a diverse and fast-growing, global workforce. If you’re eager to be part of a winning team that works together to solve some of the most challenging supply chain challenges every day, let’s talk. Description: project44 is looking for a Software Engineer - Backend to join our engineering team. You will work in a fast-paced Agile environment designing, building, and implementing best-in-class products for our customers around the world. This would be a 6 month internship opportunity.What we look for: <ul><li>Java/Python/GoLang as a programming language. Experience with SQL queries will be a plus. </li><li>Building systems in a multi-cloud environment. We use AWS & GCP but value experience in other cloud environments such as Azure </li><li>Creating large scale micro-services (preferably leveraging Java, Spring Boot and the Spring portfolio) </li><li>Creating API's/web services: REST, OpenAPI/Swagger, etc. </li><li>Container-orchestration: Docker & Kubernetes </li><li>Enjoy database related work: DynamoDB, MongoDB, Postgres, Snowflake </li><li>Real-time or near real-time streaming work in Kafka or another similar technology </li><li>Analytical approach to problem solving </li><li>Personal drive and maintaining a high pace - while taking responsibility for things working </li><li>Willingness to vocalize your ideas and pick yourself up if you get knocked down </li><li>Don't have everything listed? No problem! We'd still like to hear from you</li></ul> In-office Commitment: This position requires a commitment to contribute to our collaborative culture by working in-office Three days weekly Diversity & Inclusion At project44, we're designing the future of how the world moves and is connected through trade and global supply chains. As we work to deliver a truly world-class product and experience, we are also intentionally building teams that reflect the unique communities we serve. We’re focused on creating a company where all team members can bring their authentic selves to work every day. We’re building a company that every one of us at project44 is proud to work for, and our journey of becoming a more diverse, equitable and inclusive organization, where all have a sense of belonging, is shaped through the actions of our leadership, global teams and individual team members. We are resolute in our belief that each team member has an equal responsibility to mold and uphold our culture. project44 is an equal opportunity employer seeking to enrich our work environment by creating opportunities for individuals of all backgrounds and experiences to thrive. If you share our values and our passion for helping the way the world moves, we’d love to review your application! For any needed accommodations during the hiring process, please email recruiting@project44.com. Even if you don’t meet 100% of the above job description you should still seriously consider applying. Studies show that you can still be considered for a role if you meet just 50% of the role’s requirements. About project44 Since 2014, project44 has been transforming the way one of the largest, most important global industries does business. As transportation and logistics continues to evolve and customer expectations around delivery become more demanding, industry technology must rise to the occasion. In just a few short years, we’ve created a digital infrastructure that eliminates the inefficiencies caused by dated technology and manual processes. Our Advanced Visibility Platform is used by the world’s leading brands to track shipments, collaborate with supply chain partners, drive operational efficiencies, and create outstanding customer experiences.

Question	Topic	Difficulty	Ask Chance
Boarding Times Bias	Statistics	Medium	Very High
Hundreds of Hypotheses	Statistics	Medium	Very High
Random Bucketing	A/B Testing & Experimentation	Medium	Very High

Project44 Interview Questions

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Project44 Interview Questions

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